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Add -ip-options support

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This commit is contained in:
fyodor
2006-08-29 03:26:00 +00:00
parent 426a6d36db
commit 9cbae88f44
13 changed files with 769 additions and 244 deletions
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18
utils.h
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@@ -226,6 +226,24 @@ long tval2msecs(char *tspec);
str is returned. */
char *cstring_unescape(char *str, unsigned int *len);
/* This function converts zero-terminated 'txt' string to binary 'data'.
It is used to parse user input for ip options. Some examples of possible input
strings and results:
'\x01*2\xA2' -> [0x01,0x01,0xA2] // with 'x' number is parsed in hex
'\01\01\255' -> [0x01,0x01,0xFF] // without 'x' its in decimal
'\x01\x00*2' -> [0x01,0x00,0x00] // '*' is copying char
'R' -> Record Route with 9 slots
'S 192.168.0.1 172.16.0.1' -> Strict Route with 2 slots
'L 192.168.0.1 172.16.0.1' -> Loose Route with 2 slots
'T' -> Record Timestamp with 9 slots
'U' -> Record Timestamp and Ip Address with 4 slots
*/
int parse_ip_options(char *txt, u8 *data, int datalen, int* firsthopoff, int* lasthopoff);
void bintohexstr(char *buf, int buflen, char *src, int srclen);
char* print_ip_options(u8* ipopt, int ipoptlen);
#ifndef HAVE_STRERROR
char *strerror(int errnum);
#endif